Jack Wilshere has warned England’s new generation of players that time is already running out on their international careers and they must now deliver at Euro 2016.

The only comfort from England’s worst performance at a World Cup finals is the inexperience of some of the emerging players but Wilshere, who is 22, has pointed to how young talent from other countries have already delivered results.

The Germany squad that reached the 2010 World Cup semi-finals, for example, included Manuel Neuer, Sami Khedira, Mesut Özil, Thomas Müller, Holger Badstuber, Mario Gömez and Jérôme Boateng, who were all then below the age of 25. This current squad also includes new young additions in Mario Götze, André Schürrle, Mats Hummels and Julian Draxler.

“Time is running out for us to say we’re young anymore,” Wilshere said. “It’s easy for me to stand here and say, 'we’re young, we can go forward’ but, if you look at Germany, they’ve got young players who are delivering now. I’m 22, Ross [Barkley], Luke [Shaw] and Raheem [Sterling] are young players.

"They showed in this tournament what they can do but, in the next tournament we really have to deliver. I’m not young anymore. I’m going to be 23 in January and that’s a good age for a footballer.

“It’s all a bit raw. I’m devastated. When we get back to England then we’ll wake up every day and think: ’what if this, what if that’. It is a nice group of young players and hopefully we can stick together, learn from this tournament, take all this disappointment and bottle it up.”

After another club season that was disrupted by injury, Wilshere intends to return early for pre-season training at Arsenal in an attempt to build on the fitness that he has developed with England. He knows that regular club football is now critical in his development.

Luke Shaw, who Wilshere described as playing like he had already won 100 caps, particularly noted how he, Barkley and Sterling had been given their chance in the Premier League.

Asked if more clubs needed to be like Southampton, Shaw said: “Yeah, definitely. I think it has benefited me as well as the likes of Raheem Sterling and Ross Barkley, so why can’t other clubs do that?”

Manchester United will now increase an initial £27 million offer for Shaw, who denied that the increased prospect of Champions League football at Old Trafford would necessarily be a significant factor in his international development.

“Obviously Champions League would help, playing against world-class players, but you can’t just say that because you look at other teams that have gone through the groups and they haven’t got all Champions League players,” he said.

Two players potentially facing big decisions at their clubs are Phil Jones and Chris Smalling who, despite starting for England against Costa Rica on Tuesday, have struggled for regular first-team football at Manchester United.

“I would like to go back to the club and cement a regular place,” Jones said. “I have said in the past few years that sometimes it doesn’t really affect me but it is nice to cement a regular place.

"You have seen me play centre-back, right-back and the holding role in midfield. Obviously I think I am an out and out defender but that is for the manager to decide. I am happy to play anywhere for Manchester United.”

Regular club football should not be an issue for Barkley at Everton and, after being publicly told by Roy Hodgson that he still needs to learn when to release the ball, he said that the World Cup had been an educational experience.

“I’ve learned a lot from being around the likes of Frank [Lampard] and Stevie [Gerrard],” Barkley said. “I’m a young lad and they were my role models growing up.”

Asked about Hodgson’s observations, Barkley said: “I took that on board. Obviously I’m a young lad and I’m going to make mistakes but I’ll learn from them and I know it’s costly making mistake at this level.

"Roy’s someone who you can talk to and you could see out on the pitch he has given us young lads the confidence to do well.”